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In this study, the research team developed a new statistical way of analyzing the genetic code of people who had reached age 100 as compared with people who had a more typical lifespan.
VOA: standard.2010.07.14
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And you can see that in this code here.
它首先是显示出开始点和尾点的位置。
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And that shows you one other nice little thing we want to do, which is if I look in this code notice I set up a variable up here called false Solution Found, initially bound to false.
这显示了我们想要做的另一件事,那就是我在这段代码中设置了一个,名为Solution，Found的变量,初始值设为。
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What happens now after we've executed this third line of code, what happens next in the story?
我执行完第三行代码会发生什么呢,在这之后会发生什么呢？
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In the code of conduct, professional conduct, that we embody by this code here is comparable to what you are expected to adhere to in your professional lives.
在行为准则中，专业准则，这个准则所体现的相当于,你所期待去追求的,在你的专业生活中。
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As shown in this cartoon here, again you don't need to know the details of this, but if you're interested in knowing what's the biological bases of the genetic code this is it.
像这个动画里画的那样,这里你也不需要了解细节,不过如果你很有兴趣想知道,遗传密码的生物学基础
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So, you have this tremendous continuity between the sort of the honor code that was so dominant in the Homeric world, which has now been shifted to the larger unit, which is the polis.
现在你对荣耀法则的变迁应当有所了解了,荷马时期的主流是个人英雄主义,逐渐演变成现在对更广泛的集体,也就是对城邦的担当
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So this means we can code for it in DNA, you don't have to worry how am I going to get into the cell.
这意味着我们可以在DNA中编写它，你不用担心它怎么进到细胞里去。
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All right, you can see that this little piece of code, it's got a loop in there, and what's it doing?
好，你们看到的这一小块代码,是做了一个循环吧？,他在做什么？
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In fact, this example would compile because you can use curly braces in this way to encapsulate lines of code, but realize for now, that, not good.
实际上，这个例子可以编译,因为你可以用这种方式来压缩代码行,但是请认识到，那个，不太好。
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And the second thing that we talked about is this idea that we want you to in fact learn how to relate a choice you make about a piece of code to what the efficiency is going to be.
关于这个方法第二件事,就是我们实际上希望,你在写代码的时候,能做出优化效率的选择,因为此。
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We hand you a bunch of programming code that we wrote because this is very much the norm in the real world.
我们给你们一些我们自己写的代码,因为在现实世界中这都是非常正常的。
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What does that say? It says if in the code up here I get an exception of that sort, I'm going to go to this place to handle it.
这意味着如果在代码中,我得到一个这样的异常,我能到这里来处理它。
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So this we would want to delete in order for the code not to run the risk of crashing, but let's now see this was made by an excellent teacher out at Stanford University.
我要按顺序删除它，不要冒崩溃的风险,但是这个是由一个来自斯坦福大学的,优秀教师做的。
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So, I'm getting a string and so what really am I doing in this line of code?
那么，我得到一个字符串,这行代码实际上是干什么的呢？
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People make really stupid decisions and so as you know in this course with P sets there are three axes that we look at when evaluating your code.
人们做了一个愚蠢的决定,在这个课程上，通过习题集，当执行你的代码的时候,有三个评估方面。
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And to do this, I'm going to use some code that I've already typed in.
为了达到这个目的，我会去使用一些,我已经写好的代码。
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You want to write the specs so that everybody does in fact know what this piece of code is doing, and you're writing it each time around.
但是你得养成良好的习惯和编程风格,你得撰写规范说明从而保证,每个人都知道这段代码是干什么的。
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But now, there is an opportunity for us to implement this in code.
不过现在，我们有机会,用代码实现它。
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So this code is, in fact, correct.
所以这个代码实际上是正确的。
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The only thing I've done in this part of the program, now I'm going to go and read the code, is I've gotten the user to input a bunch of data.
现在我去读读这里的代码,是我会让用户输入一些数据，然后根据用户输入的数据。
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Because if I don't specify a name for this input, I have no way of actually referring to it in subsequent lines of code.
因为如果我不给这个输入定义一个名字，在随后的代码中,我就没有办法使用它。
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I can't rely on Professor Guttag if I give this- if this code to him, I can't rely on him to type in a float. Actually I can, because he's a smart guy, but in general, I can't rely on the user-- I wouldn't do it right to see if you did.
当Guttag使用这段代码的时候-,我不能相信他一定会输入一个浮点数,实际上我能因为他很聪明，但是总体上来讲，别相信用户一定会按照规则来-,我会故意做错来试试你的程序的。
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I could do this, by the way, by running the code and putting print statements in various places as well, but the hand simulation is valuable, so let me just start it.
做了正确的更新，顺便说一句,我可以通过在很多地方,放置print声明来达到这个目的,但是手工模拟也很有用。
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Imagine instead, you're writing code that's a hundred thousand lines, a million lines, of code. You don't want to write it in this form. All right, and the reason you don't want to do that is, well, several.
换一个角度来思考,你正在写的代码有几十万行，近百万行,你绝对不想写成这种格式,好吧，你不想这么做的原因有以下几个。
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Once you hear that description, it's easy to write the code, in fact. This is a place where the recursive version of it is much easier to think about than the iterative one.
实际上一旦你听到了大致描述,就能很轻松的写出代码来,在这一点上应用递归来解决问题,比用迭代要容易理解多了。
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So this first line of code, and some of this again we'll be rehashed but at least you can delight in the awkwardness that is this demonstration.
因此，第一行代码，有些地方我们需要重新处理下,但至少看到这次,笨拙的演示你会很高兴。
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So, what are we really doing in this line of code here?
那么，这一行代码是干什么的呢？
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stdio h This file here is called standard I/O or stdio.h and this is just another text file someone else wrote many years ago and by using that line of code there, I'm telling the computer, give me acces to this code that this other person wrote that's in that file.
在这里的头文件称为标准输入输出文件或,这是由某位前人编写的文本文件,我们只需要刚才所述的一行代码，就能告诉电脑，让我连接到,这个前人在那个文件中写的代码。
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Because what you don't see in this file is any code a that actually says put a letter of the alphabet at the top left hand corner of the screen and then put the next character to the right in other words, I'm taking for granted at this moment in time that my computer knows how to print something to the screen.
就是这些你在本文件中看不到的一些代码,实现了将首字母,放在屏幕的左上角,然后把其他字母加在其右边，我想当然地认为,我的电脑知道如何打印相应信息到屏幕上。
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